Iowa Dams

4,124 dams tracked by the National Inventory of Dams

Total Dams

4,124

High Hazard

2.2%

Poor / Unsatisfactory

Average Age

46 yrs

Hazard Classification

High91 (2.2%)

Significant274 (6.6%)

Low3,759 (91.1%)

Condition Assessment

Satisfactory259 (6.3%)

Fair81 (2.0%)

Poor / Unsatisfactory25 (0.6%)

Not Rated3,759 (91.1%)

Federal

State

141

Local

1,938

Private

2,014

Tallest Dams

High Hazard Dams

Poor Condition Dams

All Dams in Iowa

Showing 251–275 of 3,759

All High Hazard Significant Hazard Low Hazard Poor Fair Satisfactory

Dam Name	Height (ft)	Year	Hazard	Condition
Weber Creek Subwatershed Site M-13551 Woodbury County	32	1956	Low	Not Rated
Weber Creek Subwatershed Site M-11532 Woodbury County	44	1956	Low	Not Rated
Weber Creek Subwatershed Site M-11136 Woodbury County	27	1955	Low	Not Rated
Weber Creek Subwatershed Site 9-1900 Woodbury County	28	1955	Low	Not Rated
Weber Creek Subwatershed Site 5-4460 Woodbury County	41	1956	Low	Not Rated
Weber Creek Subwatershed Site 5-2832 Woodbury County	21	1955	Low	Not Rated
Weber Creek Subwatershed Site 3-4287 Woodbury County	31	1955	Low	Not Rated
Weber Creek Subwatershed Site 2-3225 Woodbury County	42	1955	Low	Not Rated
Webb Dam Decatur County	19	1978	Low	Not Rated
Weaver Dam Warren County	32	1976	Low	Not Rated
Weatherly/Haight Dam Harrison County	57	1967	Low	Not Rated
Weakland Dam Clarke County	23	1972	Low	Not Rated
Wayne County Roadgrade Dam 7-69-20 Wayne County	24	1989	Low	Not Rated
Wayne County Roadgrade Dam 3-70-21 Wayne County	23	1967	Low	Not Rated
Wayne County Roadgrade Dam 26-70-22 Wayne County	28	2001	Low	Not Rated
Wayne County Road Dam 26-70-22 Wayne County	24	2002	Low	Not Rated
Wayne Co. Roadgrade Dam - Stokes Site Wayne County	30	1996	Low	Not Rated
Wayne Co. Roadgrade Dam - Garber Site 2 Wayne County	28	1996	Low	Not Rated
Wayne Co. Roadgrade Dam - Garber Site Wayne County	49	1996	Low	Not Rated
Wayne Co. Roadgrade Dam - Bellen Site Wayne County	38	1996	Low	Not Rated
Wayne Co. Roadgrade Dam 2-67-22 Wayne County	34	1987	Low	Not Rated
Wayne Co. Roadgrade Dam 21-69-20 Wayne County	29	1993	Low	Not Rated
Wayne Co. Roadgrade Dam 16-69-21 Wayne County	22	1996	Low	Not Rated
Wayne Co. Roadgrade Dam 10-69-21 Wayne County	36	1987	Low	Not Rated
Wayne CO Road Dam 32-70-20 Wayne County	20	2003	Low	Not Rated

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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.